gormtracer

README

gormtracer

A gorm plugin for opentracing.

gormtracer only works with GORM 2.0 (gorm.io/gorm)

Usage

import (
	"github.com/opentracing/opentracing-go"
	"gorm.io/gorm"

	"github.com/kamingchan/gormtracer"
)

func main() {
	// set a tracer
	opentracing.SetGlobalTracer(YourTracer)
	// initialize db session
	db, err := gorm.Open(YourDialector, Config)
	if err != nil {
		// handle error
	}
	// initialize gormtracer
	db.Use(gormtracer.NewGormTracer())

	// happy hacking...
	// db.Where("age > ?", 18).Find()
}

Documentation

Index

• Constants
• type GormTracer
  • func NewGormTracer() *GormTracer
  • func (g *GormTracer) Initialize(db *gorm.DB) error
  • func (g *GormTracer) Name() string

Constants

const (
	HookBefore = "opentracing:startSpan"
	HookAfter  = "opentracing:finishSpan"

	OperationName = "MySQL"

	InstanceSpanKey = "opentracing-span"

	KeyRowsAffected = "db.rows_affected"
)

Types

type GormTracer

type GormTracer struct {
}

func NewGormTracer

func NewGormTracer() *GormTracer

func (*GormTracer) Initialize

func (g *GormTracer) Initialize(db *gorm.DB) error

func (*GormTracer) Name

func (g *GormTracer) Name() string